148 results about "Grindstone" patented technology

To provide a blade sharpening apparatus including a cover portion that can accommodate wear of a grindstone, have durability, and reduce replacement frequency.SOLUTION: A blade sharpening apparatus comprises: a grindstone 31 having a thickness, which is a dimension in a direction along a central axis C1, where an end surface having the central axis C1 as its normal direction is a polishing surface 31b for sharpening a blade, and an outer surface 31d is cylindrical; a mounting base 10 on which the grindstone 31 is mounted; a rotation device 20 that rotates the grindstone 31 about the central axis C1 on the mounting base 10; a water supply unit 60 for supplying water to the grindstone 31; a cover portion 40 that surrounds the outer surface 31d of the grindstone 31 and prevents scattering of water from the grindstone 31; and a height adjustment mechanism 50 that varies the height of the cover portion 40 from the mounting base 10 by moving the cover portion 40 in the direction along the central axis C1.SELECTED DRAWING: Figure 1

To provide a disc grinder cover which can change a direction of a protection cover relative to a disc grinder body.SOLUTION: A disc grinder cover 1 may be attached to a disc grinder 101 including: a tool body 10 which generates rotational power; a rotary shaft which transmits the power of the tool body 10; a pedestal part through which the rotary shaft is inserted and which is disposed at the tool body 10 side; and a disc-like disc 16 attached to the rotary shaft and having a grindstone. The disc grinder cover includes: a protection cover 30 which covers the disc 16 from the pedestal part side and is fixed to the pedestal part; and an angle fixing part which sets an angle position of the protection cover 30 and fixes the protection cover to the pedestal part. The angle fixing part has: a biasing plate 45 which is biased through elastic members in a direction from the protection cover 30 to the pedestal part; and engagement parts which engage with the biasing plate at the set angle position while causing the biasing plate to face the pedestal part.SELECTED DRAWING: Figure 3B

The present invention relates to the technical field of lead powder grinders, and in particular to a lead powder grinder with a cutter grinding function. The present invention provides a lead powder grinder with a cutter grinding function that can grind and frost a cutter. A lead powder grinder with a cutter grinding function comprises a base, a grinding box, a sliding door, a lead powder placement box, a sealed door, a guide rail, and a motor, etc. A grinding box is installed in the middle of the upper rear side of the base, the left and right sides of the grinding box are slidably connected to the sliding door, the front lower part of the grinding box is rotatably connected to the sealed door, a lead powder placement box is placed at the bottom of the grinding box, the front and rear sides of the bottom of the grinding box are connected to the guide rails, and the rear side of the inner wall of the grinding box is slidably connected to the motor. When the blade of the cutter is inserted into the strip groove on the grindstone, the cutter in a rotating state rubs against the grindstone, thereby being able to grind the cutter, which is beneficial to maintaining the grinding effect of the cutter on the lead powder.

The utility model relates to a knife sharpening auxiliary structure and a knife sharpening device, and belongs to the technical field of knife sharpeners. The cutter placing table comprises a base and limiting assemblies arranged on the base left and right, the limiting assemblies are symmetrically located on the two sides of the base, each limiting assembly comprises a first limiting plate and a second limiting plate, and a limiting gap used for limiting a cutting edge is formed between the first limiting plate and the second limiting plate which are parallel to each other; the first limiting plate and the second limiting plate incline downwards towards the center point of the base. The utility model provides a knife sharpening auxiliary structure and a knife sharpening device, which ensure that the grinding angle is accurate and consistent through an inclined limiting plate and improve the grinding quality. The two faces of the knife stone assembly are different in roughness, coarse grinding and accurate grinding can be rapidly switched, and the grinding efficiency is improved. And the cutter placing table and the fixing seat are quickly disassembled and assembled, and the universality is high. The overturning assembly is ingenious in design, it is guaranteed that the knife stone is overturned flexibly and stably, user experience is optimized, the cutting edge is evenly ground through the two-way sliding design, and the knife connecting trace is eliminated.

The utility model discloses a paint bucket cover cutting machine with a cleaning mechanism, and relates to the technical field of paint bucket processing, the paint bucket cover cutting machine comprises a rack, the upper end of the rack is fixedly provided with supports in sequence, and the middle parts of the supports are fixedly provided with fixing seats in sequence. According to the cutting device, after the cutting operation is completed, the rotating rod is rotated to drive the upper cutter shaft to move upwards along the sliding rod until the cutting knife abuts against the two knife grinders, at the moment, the driven gear at the other end of the upper cutter shaft can be meshed with the driving gear, the first motor is started, the driving gear drives the driven gear to rotate, and the cutting knife at the end is made to rotate; when the cutter is rotated, friction is generated between the cutter and the two sharpening stones, so that cleaning of the cutter becomes simple, oil stains and metal chips on the surface of the cutter can be cleaned up in the process, the cutting performance of the cutter is guaranteed, the sharpening stones are abraded after the cutter is used for a period of time, a limiting plate used for fixing a protruding block can be pulled out, and the cutter can be fixed. And therefore, the knife stone can be conveniently replaced, and the cleaning effect on the cutting knife is guaranteed.

To provide an edge line generation device that can easily obtain an edge line useful for creation of a grinding trajectory on the basis of edge detection data of an image.SOLUTION: An edge line generation device 12 comprises: an X-axis operation unit 20 and a Y-axis operation unit 22 which operate movement of a grindstone; and a manual specification part including a button which specifies a plurality of points of a contour or a vicinity of a work-piece image displayed on a display 14 as specification points. The edge line generation device comprises an edge line generation part 27 which generates an edge line displayed on the display 14 on the basis of edge detection data existing between display positions of the plurality of specified specification points.SELECTED DRAWING: Figure 1

To form a preferable holding surface on a chuck table by performing self-grinding.SOLUTION: A holding surface formation method of grinding an upper surface of a chuck table by a grindstone to form a holding surface includes: a grinding step of grinding the upper surface of the chuck table by the grindstone to form the holding surface; and a high-pressure water supply step of supplying high pressure water to the holding surface, after the grinding step. In the grinding step, a brittle layer exposed to the holding surface is formed in the chuck table. In the high-pressure water supply step, the brittle layer is removed by the high pressure water. Preferably, in the high pressure water supply step, the high pressure water is supplied to the entire region of the holding surface.SELECTED DRAWING: Figure 7

The utility model relates to the technical field of grinding wheel dressing, and discloses a dressing device which is used for dressing a grinding wheel and comprises a workbench, a grinding stone, a pressurizing piece and a lifting mechanism. The grinding stone is connected to the workbench and used for bearing the grinding wheel. The pressurizing piece is positioned above the millstone; the lifting mechanism is connected to the pressurizing piece and can drive the pressurizing piece to be close to the grinding stone so that the pressurizing piece can abut against the grinding wheel. According to the dressing device, the pressure applied to the grinding wheel by the pressurizing piece each time can be kept consistent through the lifting mechanism, accurate control over the grinding amount of the grinding wheel by the grinding stone is achieved, the defect that in the prior art, the grinding amount is uneven due to manual operation differences is overcome, the unified standard is provided for grinding wheel dressing, and the dressing efficiency is improved. The stability of the grinding wheel dressing effect is improved, the grinding efficiency is improved, and the consistency of the grinding quality of the grinding wheel is ensured.

The present invention addresses the problem of providing a novel grinding device that causes little damage to a workpiece and can perform machining with high efficiency. The processing device is provided with: a grindstone in which abrasive grains are dispersed in a binder containing a thermoplastic resin; and a temperature adjusting mechanism for adjusting the temperature of the contact surface between the grinding tool and the object to be processed according to the processing mode.

The grindstone (10) with the shaft comprises a grindstone seat (11), a grindstone shaft (12) and a grindstone (13), one end of the grindstone shaft (12) is supported by the grindstone seat (11), and the grindstone (13) is installed on the grindstone shaft (12). Guide shapes (15a, 17, 18, 18a) are provided on the grindstone seat (11), and the grindstone seat (11) is provided so that the flow direction of the grinding fluid discharged toward the outer peripheral surface of the grindstone seat (11) is changed while the grinding fluid is supplied to the grinding site of the workpiece (1).

To provide a dressing device for a grindstone, a dressing method for a grindstone, and a control program that can obtain more uniform sharpness over the entire grindstone surface.SOLUTION: A dressing device includes: a grindstone holding unit 30 capable of rotating a grindstone 12; a dresser holding unit 40 capable of holding a dresser 36 for dressing the grindstone 12; a moving mechanism unit 70 that moves at least one of the grindstone holding unit 30 and the dresser holding unit 40 so that the dresser 36 and the grindstone 12 are scanned relative to each other; and a control device 51 that controls the moving mechanism unit 70 so that when the dresser 36 contacts a large-diameter portion 210 of the grindstone surface 21, the dresser 36 and the grindstone 12 are scanned relative to each other at a first speed, and when the dresser 36 contacts a small-diameter portion 220 of the grindstone surface 21, the dresser 36 and the grindstone 12 are scanned relative to each other at a second speed higher than the first speed.SELECTED DRAWING: Figure 1

The application provides a knife sharpener with adjustable angle between two grinding stones, comprising a mounting base and a cover, the mounting base is provided with a linkage assembly and a grinding assembly, the grinding assembly comprises a fixed shaft, two grinding blocks and two grinding stones, the two grinding blocks are arranged in cross, the fixed shaft penetrates the middle part of each grinding block, the grinding stone is arranged at the first end of the grinding block, the linkage assembly is connected with the second end of the grinding block, the linkage assembly drives the two grinding blocks to rotate in opposite directions around the fixed shaft, and the linkage assembly comprises a knob; the cover is arranged on the mounting base, the cover is provided with a grinding opening and a sliding groove, the grinding stones are arranged in the grinding opening in cross, the knob is arranged in the sliding groove through the cover, and the knob can move to the grinding opening direction. The front and back movement of the knob drives the two grinding blocks to rotate in opposite directions around the fixed shaft, which is convenient for adjusting the angle between the two grinding stones, so as to adapt to various blade angle cutters, improve the grinding efficiency and prevent the wear of the blade.

This invention discloses a novel knife sharpener, specifically comprising: a sharpening box, wherein a first pad assembly and a second pad assembly are disposed on the inner wall of the bottom of the sharpening box; a first sharpening stone, placed on the first pad assembly; a second sharpening stone, placed on the second pad assembly; and a first positioning assembly disposed on the side of the first sharpening stone away from the second sharpening stone. Because the bottom surface of the first sharpening stone is inclined, when a knife is inserted into the sharpening channel, if the thickness of the knife is greater than the width of the current sharpening channel, the first sharpening stone will inevitably be squeezed towards the side closer to the first positioning assembly. At this time, the gap width decreases, and the width of the sharpening channel increases, allowing it to adapt to the size of the knife. Simultaneously, because the bottom surface of the first sharpening stone is inclined, there is a gravitational force between the first sharpening stone and the knife, thereby ensuring the sharpening effect and improving sharpening efficiency.

The utility model relates to the technical field of paperboard transverse cutting devices, and discloses a corrugated paperboard transverse cutting device which comprises a workbench, a portal frame is fixed to the workbench, a paperboard transverse cutting knife is arranged in the portal frame, a hydraulic cylinder is connected to the upper portion of the portal frame in a penetrating mode, and the extending end of the hydraulic cylinder is connected with the paperboard transverse cutting knife. Fixing frames are fixed to the two sides of the inner side of the portal frame, guide rods are movably inserted into the front portions and the rear portions of the interiors of the fixing frames, adjusting plates are fixed to the ends, opposite to the paperboard transverse cutters, of the guide rods, threaded rods are in threaded connection with the middles of the fixing frames, and the threaded rods are rotationally connected with the adjusting plates. A knife stone seat is mounted on the side face, opposite to the paperboard transverse cutter, of the adjusting plate through a connector, and a knife stone is fixed to the side face, away from the connector, of the knife stone seat, so that the paperboard transverse cutter can be better ground through the knife stone, the paperboard transverse cutter is sharper when used, and a paperboard can be better cut.

[Problem] To provide a cutting grindstone mounting structure which is capable of stably supplying a cooling liquid to a cutting grindstone, and is capable of detachably and properly mounting the cutting grindstone on a drive shaft.　[Solution] A cutting grindstone 20 mounting structure, which is capable of supplying a cooling liquid, is provided with: a drive shaft 11 that is composed of a rotation stop shaft part 11a and a male screw-like shaft part 11b; an inner flange 61 that is engaged with the rotation stop shaft part 11a and receives the cutting grindstone 20; a lock nut 62 that is screwed to the male screw-like shaft part and holds and fixes the cutting grindstone; cooling liquid introduction mechanisms 84, 86 that are configured in the drive shaft 11 and / or the lock nut 62 and guide the supplied cooling liquid to the inflow port 35a; and a supply joint part 63 that comprises a connection male screw member 92 which is connected to the cooling liquid introduction mechanisms 84, 86 through a flow passage and a joint body 91 which is connected to a cooling liquid supply source through the flow passage.

A machine tool (100) comprises: a grinding unit (4) that is provided with a tool spindle (1), a tool exchange mechanism (81) for attaching / detaching a tool to / from the tool spindle (1), a grindstone (42), and a drive mechanism (44) for transmitting the rotation of the tool spindle (1) to the grindstone (42) and converting the rotation direction or the rotation speed thereof; a stocker (5) that accommodates the grinding unit (4); a tool magazine that accommodates a tool different from the grindstone (42), the tool magazine being disposed outside a processing chamber (900); and an opening / closing door (D) that is provided on the front surface of the processing chamber (900). The tool exchange mechanism (81) partitions the tool magazine (910) and the processing chamber (900), and includes an opening / closing shutter (31) that opens and closes in order to deliver a tool between the tool spindle (1) and the tool magazine (910). The stocker (5) is disposed on the same side as the opening / closing shutter (31) in the lateral direction as viewed from the opening / closing door (D) within the processing chamber (900) in which the tool spindle (1) is disposed.

A method of manufacturing a grinding wheel includes a surface unevenness forming step of applying ultrasonic vibrations from an ultrasonic vibration applying unit through water to an annular slot defined in a surface of an annular base along circumferential directions thereof, thereby forming surface unevennesses on either one or both of a side surface and a bottom surface of the annular slot, and, after the surface unevenness forming step, a grindstone fixing step of fixing a plurality of grindstones to the annular slot with an adhesive.

A processing method includes: holding a workpiece on a holding surface of a holding table; processing the workpiece by a grindstone tool; and dressing the grindstone tool by bringing a dressing member into contact with the grindstone tool while feeding the dressing member in a stretching direction, the dressing member containing abrasive grains and linearly stretching.

To provide a grinding method of a semiconductor crystal capable of achieving higher grinding accuracy by managing plastic deformation more precisely and in detail as a plastic deformation mechanism of an end face of a semiconductor crystal ingot or a wafer surface, and a grinding wheel for grinding used in the grinding method.SOLUTION: In the method for grinding the Si wafer 100, a plastically deformed area 100A is formed on the front face of the wafer 100 by a temperature rise caused by friction with the grindstone 53 from the grindstone 53 and a pressing force for pressing the wafer 100 against the grindstone 53 via the spindle 51, and the plastically deformed area 100A is ground by the grindstone 53 while performing functional polishing by including a functional additive in the grindstone 53 on the front face of the plastically deformed area 100A.SELECTED DRAWING: Figure 4

The utility model relates to the technical field of terrazzo floors, in particular to a terrazzo floor with a pressure relief function, which comprises a leveling layer positioned above a base layer, a terrazzo layer positioned above the leveling layer and a pressure relief pipe positioned below the terrazzo layer, the pressure relief pipe is provided with a channel, or a channel can be formed between the pressure relief pipe and the leveling layer, or a channel can be formed between the pressure relief pipe and the millstone layer; leaking holes communicated with the channel are formed in the peripheral side of the pressure relief pipe, and at least part of the leaking holes abut against the leveling layer. According to the device, the pressure relief pipe with the channel and the leakage holes is arranged below the compact millstone layer, water vapor of the leveling layer can enter the channel through the leakage holes, a buffer space is reserved for the water vapor, and the water vapor is prevented from bursting the millstone layer.

The utility model relates to the technical field of cutting equipment, and discloses a cutting machine with a knife sharpening function, which comprises cutting machine equipment, the top end of the cutting machine equipment is fixedly connected with two adjusting brackets, the adjusting brackets are internally provided with through grooves, the through grooves are internally connected with movable brackets in a sliding manner, and the movable brackets are fixedly connected with the cutting machine equipment. A support plate is fixedly connected to one side of the movable support, and a grinding device is installed at the bottom end of the support plate. According to the cutting machine with the knife sharpening function, when knife sharpening is needed, only the support needs to be lowered through simple operation, the knife sharpening stone can rapidly fall to make contact with a cutter of the cutting machine for grinding, complex adjusting and aligning processes are not needed, the operation time is greatly saved, the working efficiency is improved, when knife sharpening is not needed, the knife sharpening stone is lifted, the working area is wider, and the working efficiency is improved. Other operations such as cutting are facilitated, occupation and interference of the knife stone on a working space are avoided, and obstacles in a working area are reduced.

A method of manufacturing a grindstone includes molding a mixture of materials including abrasive grains, an epoxy resin, and an amine-based hardener to a predetermined shape and leaving the mixture to stand until the epoxy resin is hardened by the amine-based hardener in a chemical reaction therewith, and the amine-based hardener has an amine value of 600 mgKOH / g or higher.

The present application relates to a kind of grinder guide rail seat calibration device and calibration method, for the calibration of the grinder guide rail seat of shredding assembly;Grinder guide rail seat calibration device includes positioning seat and measuring rod, positioning seat is installed on the grinder stone assembly mechanism of shredding assembly, measuring rod can be inserted and removed on positioning seat;Two ends of grinder guide rail seat are respectively detachably installed on the shell welding of shredding assembly;Grinder stone assembly mechanism side is slidably connected on the guide rail column arranged horizontally in shell welding, and can move along guide rail column axial motion and circumferential motion;The other side of grinder stone assembly mechanism can move along grinder guide rail seat;Shell welding is also provided with first abutment limiting portion and second abutment limiting portion at the same height;Measuring rod is arranged perpendicular to guide rail column, one end of measuring rod extends outside the upper end of shell welding, the other end of measuring rod extends into shell welding and is used for with first abutment limiting portion or second abutment limiting portion adaptation abutment.

1. Name of the product in this design: Sharpening stone. 2. Purpose of this design: A whetstone for sharpening knife blades. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model relates to the technical field of lead material cutting, and discloses a lead material large-size cutting machine which comprises a support, a workbench is fixedly installed on the top of the support, and a plurality of sets of bearing seats which are distributed at equal intervals are fixedly installed on the two sides of the top of the support. A first hydraulic push rod and a cutting machine in the cutting and polishing mechanism are driven, so that when the cutting machine drives a cutting blade to rotate, the cutting machine is pushed to move in the horizontal direction of two sets of limiting bases, and large-size lead materials are transversely cut; a cutting blade driven by a cutting machine can be arranged in the concave base in a matched mode, the cutting blade is matched with continuous rotation of the cutting blade, the cutting blade rubs with knife grinders on the two sides of the inner wall of the concave base, the cutting blade is efficiently ground, and it is avoided that after the cutting blade cuts a large-size lead material for a long time, the cutting edge of the cutting blade is passivated, and the service life of the lead material is prolonged. And the cutting efficiency of the cutting blade on the large-size lead material is ensured.

To provide a lightweight grindstone for a roll sharpener having a structure that can be easily manufactured. [Solution] The roll sharpener grinding wheel of the present invention comprises two curved, dome-shaped diamond grinding wheels, one on the left and one on the right, each with a polygonal cross-section hole in the center; a roughly truncated cone-shaped plastic disk, which has a polygonal cross-section hole in the center and is fitted inside the diamond grinding wheels; and a support part that is inserted into the through-holes to support the two diamond grinding wheels and two plastic disks, with the plastic disks fitted inside each of the two diamond grinding wheels and the grinding faces of the two diamond grinding wheels facing each other, and the cross-section of the support part is the same shape as the cross-section of the through-holes in the two diamond grinding wheels and the two plastic disks.

This utility model relates to the field of power tool technology, specifically a handheld electric scissors with a grinding assembly. A handheld electric scissors includes a rotating blade, a housing, a motor driving the blade's rotation, and a grinding assembly for sharpening the blade. The grinding assembly includes a sharpening stone, a user-rotatable driving member, a driven member that rotates with the driving member, and a biasing member that applies a restoring force to the sharpening stone. The sharpening stone can switch between a first (working) and a second (non-working) position. The driven member is fixed to the sharpening stone, and has a pushed portion; the driving member has a pushing portion, and the pushed portion and the pushing portion abut against each other via a slope. When the user rotates the driving member around its central axis, the pushing portion presses against the pushed portion, causing the driven member to overcome the force of the biasing member and move along the central axis, switching the sharpening stone from the second position to the first position, thus achieving the sharpening and maintenance of the rotating blade. This utility model ensures simple and convenient sharpening operation through the grinding assembly, effectively maintaining the blade's sharpness.

The utility model relates to the technical field of epoxy millstone processing, in particular to a side mold clamping and fixing mechanism of an epoxy millstone, which comprises an inner cylinder connected to the top of an axis base plate, a side support part arranged outside the inner cylinder, and a movable outer frame arranged on one side of the side support part. According to the epoxy grinding stone clamping device, the epoxy grinding stone main body can be clamped through the four clamping claw pieces, so that the epoxy grinding stone main body is fixed, and when the epoxy grinding stone main bodies with different sizes are subjected to adaptive adjusting clamping by controlling rotation of the adjusting button, the epoxy grinding stone main bodies with different sizes can be clamped, and the clamping efficiency is improved. And the applicability of the clamping mechanism is improved.

To relate to an optical copy grinding machine capable of reducing cost necessary for grinding by improving work efficiency in the case of processing a workpiece having a front flank.SOLUTION: An optical copy grinding machine includes a workpiece holding mechanism that can hold a workpiece to be an object of grinding, a grindstone holding mechanism for holding grindstone that can grind the workpiece held by the workpiece holding mechanism, an acquisition part for acquiring front clearance angle information of the workpiece, and a control part for controlling the grindstone holding mechanism by using the front clearance angle information of the workpiece, the grindstone holding mechanism includes a first movement mechanism for moving the grindstone along a vertical direction, and a second movement mechanism for approaching or separating the grindstone to / from the workpiece holding mechanism, and the control part is configured to synchronously drive the first movement mechanism and the second movement mechanism so as to move the grindstone along the front flank.SELECTED DRAWING: Figure 1